Cnc

SolidWorks exports flat patterns correctly. Nesting software imports DXF correctly. The problem is that what SolidWorks produces by default and what nesting software expects are often misaligned — and the failures are silent. Profiles import with no errors but cut the wrong features. Bend lines disappear. Splines approximate differently on each machine. Scale is off by 25.4×. This post covers the specific mismatch between SolidWorks DXF output and what ProNest, SigmaNEST, Lantek, and similar nesting tools expect, and the exact export configuration changes that fix it. ...

You export a flat pattern from SolidWorks, send the DXF to the laser cutter, and get a phone call: “There are open loops in your file. The machine can’t run it.” You open the DXF back in SolidWorks, zoom in, and the outline looks fine. Zoom in further. There’s a 0.003 mm gap between two arc endpoints at a spline junction. This problem has two distinct root causes that require different fixes. Conflating them wastes time. Here is what is actually happening in each case. ...

The marketing claim that Fusion 360 has “seamless” integrated CAD/CAM is technically accurate and practically misleading — depending entirely on where your design data comes from. This comparison breaks down how each approach works, where the integration claim holds up, and where it falls apart. For background on the broader platform comparison, see SolidWorks vs Fusion 360 vs Inventor 2026. How Fusion 360 CAM Actually Works Fusion 360’s CAM environment (the Manufacture workspace) shares the same file as the design. When you switch from the Design workspace to Manufacture, you are looking at the same geometry, in the same session, with no export or import step. The feature timeline is accessible. Selections persist. When you modify the model and return to Manufacture, setups reference the updated geometry. ...

AutoCAD is the closest tool to the DXF format itself — AutoDesk invented DXF, and the format tracks AutoCAD versions. That proximity creates a false sense of safety. AutoCAD drawings destined for laser cutting fail for reasons that have nothing to do with version support: phantom geometry, Z-elevation surprises, splines the controller can’t handle, and blocks that CAM software silently ignores. The problems are consistent and avoidable, but only if you run a specific command sequence before every export. ...